There is nothing smooth about AWS's billing; it's notoriously byzantine, and so difficult to interpret that there are multiple third-party services whose entire offering is based on ingesting and parsing your AWS bill.
The value of AWS billing isn't that it's easy, it's that the spending decisions are in the hands of the right people so software development moves faster.
Yes, exactly. The billing tools are awful, have always been awful, and will always be awful, but bad tooling can be worked around much more readily than bad bureaucracy.
